Safety enhanced pivoting door operator
US5036620A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1990 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Sep 17, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety enhanced pivoting door operator is disclosed which includes an apparatus for selective restraint of the swing door to resist movement of the door in a first direction beyond the fully closed position during routine use while yet allowing movement of the door in the first direction beyond the fully closed position when sufficient force is applied to the door in non-routine situations, for example to allow emergency exit or the like. The operator includes a motor and a drive train connected with a rotatable pivot upon which the door is movable. The apparatus includes a mounting member having a deflectable bar connected therewith. A member for impeding movement of the door beyond the fully closed position is connected with the pivot, the impeding member and the deflectable bar coming into contact during normal use to thus resist movement of the door beyond the closed position, but the bar being deflectable by the impeding member to allow such movement when sufficient non-routine force is applied to the door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.